Registration Dossier

Diss Factsheets

Physical & Chemical properties

Auto flammability

Currently viewing:

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
auto-ignition temperature (liquids)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2013-02-25 to 2013-03-02
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))
Version / remarks:
dated 31 May 2008
Deviations:
no
Qualifier:
according to guideline
Guideline:
other: DIN 51794
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Key result
Auto-ignition temperature:
350 °C
Atm. press.:
1 013.25 hPa

Pre-Determination

The ignition attempts of the pre-determination program are presented in the following table

Selected T*

T Vessel

Drops used

Ignition?

Observations

°C

°C

#

yes/no

 

300

200.3

5

no

-

300

220.1

5

no

-

300

244.3

5

no

fume

300

270.1

5

no

fume

300

297.3

5

no

fume

300

319.3

5

no

fume

300

342.7

5

no

fume

300

366.0

5

no

fume

300

388.6

5

no

fume

500

410.2

5

yes

Ignition after 153 s, flame

*The temperature was selected at the ZPA3 corresponding to an initial oven temperature of 200 °C. As the test item showed no ignition at 388.6 °C, a higher temperature was selected for the subsequent ignition trials (corresponding to a new initial oven temperature of 400 °C). Using a constant heating rate, the subsequent ignition trials were conducted every 20 ± 5 K.

Main study

Lowest Values Main Study

Experiment

Value

Ignition delay

Drops used

First Experiment

368 °C

20 s

8

Second Experiment

353 °C

16 s

12

Third Experiment

353 °C

27 s

12

The lowest value of the auto-ignition temperature is 353 °C. This value was determined using 12 drops test item. The test item showed auto-ignition after 16 and after 27 seconds. The auto-ignition temperature (result of determination) is the lowest value from the lowest values of the three experiments, rounded down to a whole multiple of 5 °C. Therefore, the auto-ignition temperature is stated as 350 °C.

Conclusions:
The auto-ignition temperature of Incozol 4 was determined to be 350 °C at 1013.25 hPa.
Executive summary:

A study was to determine the auto-ignition temperature of Incozol 4 according to Regulation (EC) No 440/2008 method A.15 and DIN 51794. Three independent determinations were conducted. The auto-ignition temperature was determined to be 368 °C, 353 °C and 353 °C, respectively. According to the criteria as laid down in DIN 51794 the auto-ignition temperatureis the lowest value from three experiments, rounded down to a whole multiple of 5 °C. Therefore, the auto-ignition temperature is stated as 350 °C at 1001 .67 hPa. The three lowest values of the main study lay within a range of 20 K. No observations were made which might cause doubts concerning the validity of the study outcome. Thus, the validation criteria were fulfilled.

Description of key information

The auto-ignition temperature was determined to be 350 °C at 1001.67 hPa.

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
350 °C

Additional information

A study was to determine the auto-ignition temperature of Incozol 4 according to Regulation (EC) No 440/2008 method A.15 and DIN 51794 Three independent determinations were conducted. The auto-ignition temperature was determined to be 368 °C, 353 °C and 353 °C respectively. According to the criteria as laid down in DIN 51794 the auto-ignition temperatureis the lowest value from three experiments, rounded down to a whole multiple of 5 °C. Therefore, the auto-ignition temperature is stated as 350 °C at 1001 .67 hPa. The three lowest values of the main study lay within a range of 20 K. No observations were made which might cause doubts concerning the validity of the study outcome. Thus, the validation criteria were fulfilled.

Categories Display